Chris Brzuska

According to our database, Chris Brzuska authored at least 52 papers between 2009 and 2025.

Collaborative distances:

• Dijkstra number of three.
• Erdős number of four.

2025

On Building Fine-Grained One-Way Functions from Strong Average-Case Hardness.

Chris Brzuska, Geoffroy Couteau

J. Cryptol., March, 2025

2024

Evasive LWE Assumptions: Definitions, Classes, and Counterexamples.

Chris Brzuska, Akin Ünal, Ivy K. Y. Woo

IACR Cryptol. ePrint Arch., 2024

Falsifiability, Composability, and Comparability of Game-based Security Models for Key Exchange Protocols.

Chris Brzuska, Cas Cremers, Håkon Jacobsen, Douglas Stebila, Bogdan Warinschi

IACR Cryptol. ePrint Arch., 2024

Adaptive Distributional Security for Garbling Schemes with 풪(|x|) Online Complexity.

Estuardo Alpirez Bock, Chris Brzuska, Pihla Karanko, Sabine Oechsner, Kirthivaasan Puniamurthy

IACR Cryptol. ePrint Arch., 2024

Simple Watermarking Pseudorandom Functions from Extractable Pseudorandom Generators.

Estuardo Alpirez Bock, Chris Brzuska, Russell W. F. Lai

IACR Commun. Cryptol., 2024

On Bounded Storage Key Agreement and One-Way Functions.

Chris Brzuska, Geoffroy Couteau, Christoph Egger, Willy Quach

Proceedings of the Theory of Cryptography - 22nd International Conference, 2024

Instantiating the Hash-Then-Evaluate Paradigm: Strengthening PRFs, PCFs, and OPRFs.

Chris Brzuska, Geoffroy Couteau, Christoph Egger, Pihla Karanko, Pierre Meyer

Proceedings of the Security and Cryptography for Networks - 14th International Conference, 2024

2023

On Provable White-Box Security in the Strong Incompressibility Model.

Estuardo Alpirez Bock, Chris Brzuska, Russell W. F. Lai

IACR Trans. Cryptogr. Hardw. Embed. Syst., 2023

CryptoZoo: A Viewer for Reduction Proofs.

Chris Brzuska, Christoph Egger, Kirthivaasan Puniamurthy

IACR Cryptol. ePrint Arch., 2023

On Derandomizing Yao's Weak-to-Strong OWF Construction.

Chris Brzuska, Geoffroy Couteau, Pihla Karanko, Felix Rohrbach

IACR Cryptol. ePrint Arch., 2023

New Random Oracle Instantiations from Extremely Lossy Functions.

Chris Brzuska, Geoffroy Couteau, Christoph Egger, Pihla Karanko, Pierre Meyer

IACR Cryptol. ePrint Arch., 2023

Breaking DPA-protected Kyber via the pair-pointwise multiplication.

Estuardo Alpirez Bock, Gustavo Banegas, Chris Brzuska, Lukasz Chmielewski, Kirthivaasan Puniamurthy, Milan Sorf

IACR Cryptol. ePrint Arch., 2023

Adaptive Distributional Security for Garbling Schemes with 𝒪(|x|) Online Complexity.

Estuardo Alpirez Bock, Chris Brzuska, Pihla Karanko, Sabine Oechsner, Kirthivaasan Puniamurthy

Proceedings of the Advances in Cryptology - ASIACRYPT 2023, 2023

2022

Security Analysis of the MLS Key Derivation.

Chris Brzuska, Eric Cornelissen, Konrad Kohbrok

Proceedings of the 43rd IEEE Symposium on Security and Privacy, 2022

2021

A State-Separating Proof for Yao's Garbling Scheme.

Chris Brzuska, Sabine Oechsner

IACR Cryptol. ePrint Arch., 2021

Key-schedule Security for the TLS 1.3 Standard.

Chris Brzuska, Antoine Delignat-Lavaud, Christoph Egger, Cédric Fournet, Konrad Kohbrok, Markulf Kohlweiss

IACR Cryptol. ePrint Arch., 2021

Cryptographic Security of the MLS RFC, Draft 11.

Chris Brzuska, Eric Cornelissen, Konrad Kohbrok

IACR Cryptol. ePrint Arch., 2021

2020

On the Security Goals of White-Box Cryptography.

Estuardo Alpirez Bock, Alessandro Amadori, Chris Brzuska, Wil Michiels

IACR Trans. Cryptogr. Hardw. Embed. Syst., 2020

Towards Fine-Grained One-Way Functions from Strong Average-Case Hardness.

Chris Brzuska, Geoffroy Couteau

IACR Cryptol. ePrint Arch., 2020

2019

White-Box Cryptography: Don't Forget About Grey-Box Attacks.

Estuardo Alpirez Bock, Joppe W. Bos, Chris Brzuska, Charles Hubain, Wil Michiels, Cristofaro Mune, Eloi Sanfelix Gonzalez, Philippe Teuwen, Alexander Treff

J. Cryptol., 2019

Security Reductions for White-Box Key-Storage in Mobile Payments.

Estuardo Alpirez Bock, Chris Brzuska, Marc Fischlin, Christian Janson, Wil Michiels

IACR Cryptol. ePrint Arch., 2019

Doubly half-injective PRGs for incompressible white-box cryptography.

Estuardo Alpirez Bock, Alessandro Amadori, Joppe W. Bos, Chris Brzuska, Wil Michiels

IACR Cryptol. ePrint Arch., 2019

2018

State-Separating Proofs: A Reduction Methodology for Real-World Protocols.

Chris Brzuska, Antoine Delignat-Lavaud, Konrad Kohbrok, Markulf Kohlweiss

IACR Cryptol. ePrint Arch., 2018

On the Ineffectiveness of Internal Encodings - Revisiting the DCA Attack on White-Box Cryptography.

Estuardo Alpirez Bock, Chris Brzuska, Wil Michiels, Alexander Treff

IACR Cryptol. ePrint Arch., 2018

State Separation for Code-Based Game-Playing Proofs.

Chris Brzuska, Antoine Delignat-Lavaud, Cédric Fournet, Konrad Kohbrok, Markulf Kohlweiss

Proceedings of the Advances in Cryptology - ASIACRYPT 2018, 2018

2017

A Modular Security Analysis of EAP and IEEE 802.11.

Chris Brzuska, Håkon Jacobsen

IACR Cryptol. ePrint Arch., 2017

2016

Safely Exporting Keys from Secure Channels: On the security of EAP-TLS and TLS Key Exporters.

Christina Brzuska, Håkon Jacobsen, Douglas Stebila

IACR Cryptol. ePrint Arch., 2016

On Statistically Secure Obfuscation with Approximate Correctness.

Zvika Brakerski, Christina Brzuska, Nils Fleischhacker

IACR Cryptol. ePrint Arch., 2016

Downgrade Resilience in Key-Exchange Protocols.

Karthikeyan Bhargavan, Christina Brzuska, Cédric Fournet, Matthew Green, Markulf Kohlweiss, Santiago Zanella Béguelin

IACR Cryptol. ePrint Arch., 2016

2015

Universal Computational Extractors and the Superfluous Padding Assumption for Indistinguishability Obfuscation.

Christina Brzuska, Arno Mittelbach

IACR Cryptol. ePrint Arch., 2015

Arithmetic Cryptography.

Benny Applebaum, Jonathan Avron, Christina Brzuska

Electron. Colloquium Comput. Complex., 2015

Arithmetic Cryptography: Extended Abstract.

Benny Applebaum, Jonathan Avron, Christina Brzuska

Proceedings of the 2015 Conference on Innovations in Theoretical Computer Science, 2015

2014

Indistinguishability Obfuscation versus Point Obfuscation with Auxiliary Input.

Christina Brzuska, Arno Mittelbach

IACR Cryptol. ePrint Arch., 2014

Using Indistinguishability Obfuscation via UCEs.

Christina Brzuska, Arno Mittelbach

IACR Cryptol. ePrint Arch., 2014

Random Oracle Uninstantiability from Indistinguishability Obfuscation.

Christina Brzuska, Pooya Farshim, Arno Mittelbach

IACR Cryptol. ePrint Arch., 2014

Indistinguishability Obfuscation and UCEs: The Case of Computationally Unpredictable Sources.

Christina Brzuska, Pooya Farshim, Arno Mittelbach

IACR Cryptol. ePrint Arch., 2014

On Basing Size-Verifiable One-Way Functions on NP-Hardness.

Andrej Bogdanov, Christina Brzuska

Electron. Colloquium Comput. Complex., 2014

Indistinguishability Obfuscation versus Multi-bit Point Obfuscation with Auxiliary Input.

Christina Brzuska, Arno Mittelbach

Proceedings of the Advances in Cryptology - ASIACRYPT 2014, 2014

2013

On the foundations of key exchange.

Christina Brzuska

PhD thesis, 2013

An Analysis of the EMV Channel Establishment Protocol.

Christina Brzuska, Nigel P. Smart, Bogdan Warinschi, Gaven J. Watson

IACR Cryptol. ePrint Arch., 2013

Reset Indifferentiability and its Consequences.

Paul Baecher, Christina Brzuska, Arno Mittelbach

IACR Cryptol. ePrint Arch., 2013

Notions of Black-Box Reductions, Revisited.

Paul Baecher, Christina Brzuska, Marc Fischlin

IACR Cryptol. ePrint Arch., 2013

Efficient and Perfectly Unlinkable Sanitizable Signatures without Group Signatures.

Christina Brzuska, Henrich Christopher Pöhls, Kai Samelin

Proceedings of the Public Key Infrastructures, Services and Applications, 2013

2012

Less is More: Relaxed yet Composable Security Notions for Key Exchange.

Christina Brzuska, Marc Fischlin, Nigel P. Smart, Bogdan Warinschi, Stephen C. Williams

IACR Cryptol. ePrint Arch., 2012

TLS, PACE, and EAC: ACryptographic View at Modern Key Exchange Protocols.

Christina Brzuska, Özgür Dagdelen, Marc Fischlin

Proceedings of the Sicherheit 2012: Sicherheit, 2012

Non-interactive Public Accountability for Sanitizable Signatures.

Christina Brzuska, Henrich Christopher Pöhls, Kai Samelin

Proceedings of the Public Key Infrastructures, Services and Applications, 2012

2011

Physically Uncloneable Functions in the Universal Composition Framework.

Christina Brzuska, Marc Fischlin, Heike Schröder, Stefan Katzenbeisser

IACR Cryptol. ePrint Arch., 2011

Composability of bellare-rogaway key exchange protocols.

Christina Brzuska, Marc Fischlin, Bogdan Warinschi, Stephen C. Williams

Proceedings of the 18th ACM Conference on Computer and Communications Security, 2011

2010

Unlinkability of Sanitizable Signatures.

Christina Brzuska, Marc Fischlin, Anja Lehmann, Dominique Schröder

Proceedings of the Public Key Cryptography, 2010

Redactable Signatures for Tree-Structured Data: Definitions and Constructions.

Christina Brzuska, Heike Busch, Özgür Dagdelen, Marc Fischlin, Martin Franz, Stefan Katzenbeisser, Mark Manulis, Cristina Onete, Andreas Peter, Bertram Poettering, Dominique Schröder

Proceedings of the Applied Cryptography and Network Security, 8th International Conference, 2010

2009

Security of Sanitizable Signatures Revisited.

Christina Brzuska, Marc Fischlin, Tobias Freudenreich, Anja Lehmann, Marcus Page, Jakob Schelbert, Dominique Schröder, Florian Volk

Proceedings of the Public Key Cryptography, 2009

Santizable Signatures: How to Partially Delegate Control for Authenticated Data.

Christina Brzuska, Marc Fischlin, Anja Lehmann, Dominique Schröder

Proceedings of the BIOSIG 2009, 2009